Fused IEC config prob

emperor · 26th July 2007, 11:48 PM

Hi guys,

just bought a T100hcl from autocostruire, Im making my first Amplifier and i have the transfromer, and fixings. I bought a rocker switch and also a 'Fused' IEC plug.

As i cant find a tutorial online, however much i google, i know this must be a basic question, but i gotta get it right, so would appreciate any feedback.

i am assuming that the transformer wires, neutral, go to the IEC plug, and the live, goes to the lowest pin of three on the rocker switch. The bottom one is brass, so the Transformer live wire goes to that?. and then the live wire goes from the second pin up, to the live soldertag of the IEC plug?. This is actually a long strip that incorporates the fuse as well

And the Neutral,of the transformer goes to the IEC plug also?.

But, as there is a fuse on the chassis plug, there are two tags, One on the neutral pin, and one on the Neutral part of the Fuse. The thing is on the live strip on the IEC plug, it is an all in one strip. Im confused now, as to where i solder the neutral pin. do i use a peice of wire to bridge the two neutral terminals together?.

just found an online pdf, diagram of the IEC plug IEC chassis plug

i hope i havent made a hash of the explanation.

I just dont want to blow my lovely amp, which worked well, ona bench test earlier today

thanks for any help

Chartal · 27th July 2007, 01:13 AM

I think it should be wired that way.

emperor · 27th July 2007, 01:21 AM

Excellent Chartal, i can get on now, thankyou very much, great diagram

Chartal · 27th July 2007, 04:28 AM

No Problem.

emperor · 28th July 2007, 12:43 AM

Dont quite know, how i did it, but i set it up, as the schematic. and it didnt work. My rocker switch has 3 pins, a brass one at the bottom, and two silver ones , middle and top. I fixed the live, from the transformer to the bottom brass pin, and the live going back to the chassis plug from the second pin up. The first time, i plugged it in, the led was on, and nothing happened. No sound, no power, nothing. ( there was a fuse in the housing as well).

Then just as i was saying oh F...., i desoldered it all, and just plugged the 230v, blue/neutral , brown/live , straight into a wall plug, it worked, so luckily, no damage there.

What i should have done, that moment is come on here and ask what i did wrong.

i then tried rewiriing it with the live IEC chassis plug to the lower 3rd pin of the rocker switch, and the live from the transformer to the 2nd pin up. As soon as i plugged it in, the led was on,again(whilst in the off position) then the switches click went floppy, no sound, whoops.

Ive got to get this right guys, it may be basics, but can anyone please give me any idea why this is happening?.

it not the amp, as i rewired it to a 3 pin wall plug, with the live and neutral wires again, and thank god it was still working.

Any info would be gratefully appreciated

Chartal · 28th July 2007, 01:00 AM

Hi.

Do you have some information about your switch (Part Nbr., Manuf, Datasheet, pic).

emperor · 28th July 2007, 01:03 AM

yes here Rapid online, blue LED rocker switch

pinkmouse · 28th July 2007, 01:04 AM

Unplug everything, and disconnect all the wires from the connector. Take out the fuse. Set your meter to resistance, and put one probe on the single connector at the top. This is earth. Buzz out the connections on the back of the block and find the one where you get signal. This is your earth. Next go to your connections on the bottom. One of them will give you continuity, this is the neutral. Finally, check that you get no continuity on the last connection, this should be the live. Replace the fuse and it should buzz through.

BTW, if the connector is to IEC standard, it is obligatory for the connections to be marked on the back.

emperor · 28th July 2007, 01:25 AM

thanks pinkmouse, yes the connections for the IEC plug are marked, Chartal, was kind enough to post a diagram above of it. But the rocker switch config is the problem. I asked an old trusted freind whos helped me through the basics, of putting the amp together, (he doesnt build amps though). And hes not sure about either plug, lol. So far with a multimeter, ive tested resistors, and volts froma battery. but i will try again.

Could it be i have to solder to the live strip in the diagram, and not the second pin Chartal?

Chartal · 28th July 2007, 04:32 AM

Hi Emperor.

Here's a new schematic for you.

26th July 2007, 11:48 PM	#1
emperor diyAudio Member Join Date: Aug 2002 Location: Suffolk ,England	Fused IEC config prob Hi guys, just bought a T100hcl from autocostruire, Im making my first Amplifier and i have the transfromer, and fixings. I bought a rocker switch and also a 'Fused' IEC plug. As i cant find a tutorial online, however much i google, i know this must be a basic question, but i gotta get it right, so would appreciate any feedback. i am assuming that the transformer wires, neutral, go to the IEC plug, and the live, goes to the lowest pin of three on the rocker switch. The bottom one is brass, so the Transformer live wire goes to that?. and then the live wire goes from the second pin up, to the live soldertag of the IEC plug?. This is actually a long strip that incorporates the fuse as well And the Neutral,of the transformer goes to the IEC plug also?. But, as there is a fuse on the chassis plug, there are two tags, One on the neutral pin, and one on the Neutral part of the Fuse. The thing is on the live strip on the IEC plug, it is an all in one strip. Im confused now, as to where i solder the neutral pin. do i use a peice of wire to bridge the two neutral terminals together?. just found an online pdf, diagram of the IEC plug IEC chassis plug i hope i havent made a hash of the explanation. I just dont want to blow my lovely amp, which worked well, ona bench test earlier today thanks for any help

28th July 2007, 01:04 AM	#8
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	Unplug everything, and disconnect all the wires from the connector. Take out the fuse. Set your meter to resistance, and put one probe on the single connector at the top. This is earth. Buzz out the connections on the back of the block and find the one where you get signal. This is your earth. Next go to your connections on the bottom. One of them will give you continuity, this is the neutral. Finally, check that you get no continuity on the last connection, this should be the live. Replace the fuse and it should buzz through. BTW, if the connector is to IEC standard, it is obligatory for the connections to be marked on the back. __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

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27th July 2007, 01:21 AM	#3
emperor diyAudio Member Join Date: Aug 2002 Location: Suffolk ,England	Excellent Chartal, i can get on now, thankyou very much, great diagram

27th July 2007, 04:28 AM	#4
Chartal diyAudio Member Join Date: Nov 2004 Location: Montreal	No Problem.

28th July 2007, 12:43 AM	#5
emperor diyAudio Member Join Date: Aug 2002 Location: Suffolk ,England	Dont quite know, how i did it, but i set it up, as the schematic. and it didnt work. My rocker switch has 3 pins, a brass one at the bottom, and two silver ones , middle and top. I fixed the live, from the transformer to the bottom brass pin, and the live going back to the chassis plug from the second pin up. The first time, i plugged it in, the led was on, and nothing happened. No sound, no power, nothing. ( there was a fuse in the housing as well). Then just as i was saying oh F...., i desoldered it all, and just plugged the 230v, blue/neutral , brown/live , straight into a wall plug, it worked, so luckily, no damage there. What i should have done, that moment is come on here and ask what i did wrong. i then tried rewiriing it with the live IEC chassis plug to the lower 3rd pin of the rocker switch, and the live from the transformer to the 2nd pin up. As soon as i plugged it in, the led was on,again(whilst in the off position) then the switches click went floppy, no sound, whoops. Ive got to get this right guys, it may be basics, but can anyone please give me any idea why this is happening?. it not the amp, as i rewired it to a 3 pin wall plug, with the live and neutral wires again, and thank god it was still working. Any info would be gratefully appreciated

28th July 2007, 01:00 AM	#6
Chartal diyAudio Member Join Date: Nov 2004 Location: Montreal	Hi. Do you have some information about your switch (Part Nbr., Manuf, Datasheet, pic).

28th July 2007, 01:03 AM	#7
emperor diyAudio Member Join Date: Aug 2002 Location: Suffolk ,England	yes here Rapid online, blue LED rocker switch

28th July 2007, 01:25 AM	#9
emperor diyAudio Member Join Date: Aug 2002 Location: Suffolk ,England	thanks pinkmouse, yes the connections for the IEC plug are marked, Chartal, was kind enough to post a diagram above of it. But the rocker switch config is the problem. I asked an old trusted freind whos helped me through the basics, of putting the amp together, (he doesnt build amps though). And hes not sure about either plug, lol. So far with a multimeter, ive tested resistors, and volts froma battery. but i will try again. Could it be i have to solder to the live strip in the diagram, and not the second pin Chartal?

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